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#92305 - 01/08/13 02:09 PM Re: AV7005, Oppo 103 and Epson PJ [Re: vp8000]
jmacari Offline
Gunslinger

Registered: 12/28/05
Posts: 99
Loc: Rhode Island
Brian-

As XenonMan states, just have the amp powered on and the AV7005 powered on; also connected to each, by RCA's or XLR's; NO OTHER EQUIPMENT connected to the Amp/Preamp...then connect your Optimum cable box by way of HDMI (if that is your connection type); if no hum, then POWER ON the cable box...see if you have hum, i.e., if so, its the ground on your cable TV system/hookup. By doing a lot of research on line, it seems that that (cable, DIRECTV receivers) is usually the culprit for ground loop hum.....
_________________________
Anthem MRX-500/ Outlaw 7500, Paradigm Studio 100's Fronts, Paradigm CC-590 Center, Phase Technology Dipole rears , Martin Logan Dynamo sub, Oppo BDP-103, DIRECTV H22-200 DVR HD receiver, Samsung PN60E8000 3D Plasma 60"
2nd System
B&K ST 202 Amp, Outlaw 990, Rotel RCD 1072CD, Yaqin CD 1 Tube Buffer, Apogee Centaur Minors, Phase Technology Model 10 Sub, Rotel RP-855 turntable, Panasonic DMP-BD30, DIRECTV H21-700 DVR HD receiver, Free Agent Home Theatre+, Vizio 40" LED

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#92313 - 01/08/13 06:55 PM Re: AV7005, Oppo 103 and Epson PJ [Re: vp8000]
XenonMan Offline
Desperado

Registered: 04/08/08
Posts: 2676
Loc: Columbus,North Carolina
Since you have two power supply/surge units Make sure they are the same ground plane. You could start by plugging the AV7005 and the 7700 into the same unit if not already.
_________________________
Music system
Model 990/7500/Magnepan 1.6 QRs/Technics SL1200 MK2/Aperion S-12 Subwoofer/OWA3/Sony NS75H DVD
APC H15 Power Conditioner

TV System
Large Advent Loudspeakers/ Polk center/Monoprice surrounds/Panasonic Viera 42 inch/Onkyo HT-RC260/Sony BDP S590/Directv


Home Theater System
Onkyo PR-SC886/Outlaw 7125 Klipsch RF-82 L/R,RC-62 center, RB-35 SR/SL, BENQ HT1075, Outlaw LFM1-EX/OPPO BDP-83/Directv
Harmony ONE
Blue Jeans and Monoprice interconnects
APC H15 Power Conditioner

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#92372 - 01/14/13 05:23 PM Re: AV7005, Oppo 103 and Epson PJ [Re: XenonMan]
vp8000 Offline
Gunslinger

Registered: 12/01/06
Posts: 131
Loc: NJ
Hey guys, I had to run a new HDMI cable for the new PJ. This took away a good amount of the hum. It is still too loud for me. I haven't had a chance to do anymore work on the system. I did run a ground from my grounding cable on my cold water pipe to the amp, the marantz with no change. Also ran a ground from both my monster power centers, no change.

What do you guys think of a ground loop eliminator like the ones they sell at Radio Shack? Just wondering?

Thanks again.
_________________________
Brian

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#92373 - 01/14/13 06:29 PM Re: AV7005, Oppo 103 and Epson PJ [Re: vp8000]
jmacari Offline
Gunslinger

Registered: 12/28/05
Posts: 99
Loc: Rhode Island
Quote:
What do you guys think of a ground loop eliminator like the ones they sell at Radio Shack? Just wondering?


I don't know about the RadioShack thing...but go here for a wealth of information about ground loops and fixing such....

http://www.audioholics.com/tweaks/connec...em-hum-and-buzz
_________________________
Anthem MRX-500/ Outlaw 7500, Paradigm Studio 100's Fronts, Paradigm CC-590 Center, Phase Technology Dipole rears , Martin Logan Dynamo sub, Oppo BDP-103, DIRECTV H22-200 DVR HD receiver, Samsung PN60E8000 3D Plasma 60"
2nd System
B&K ST 202 Amp, Outlaw 990, Rotel RCD 1072CD, Yaqin CD 1 Tube Buffer, Apogee Centaur Minors, Phase Technology Model 10 Sub, Rotel RP-855 turntable, Panasonic DMP-BD30, DIRECTV H21-700 DVR HD receiver, Free Agent Home Theatre+, Vizio 40" LED

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#92379 - 01/15/13 03:20 PM Re: AV7005, Oppo 103 and Epson PJ [Re: vp8000]
vp8000 Offline
Gunslinger

Registered: 12/01/06
Posts: 131
Loc: NJ
Hey Jmacari, great article, thanks much for the link. I started reading it and stopped home for lunch and pulled the cable from my Optimum on line off the back of the Monster power center, (I have it running in and out of that) and wham, no more buzz, silent, put in back in and the noise comes right back.

Thanks. Now I just will read some more and figure out out to make the repair. Thanks!!!!

Any suggestions on where to start?

Thanks to all of you guys again.
_________________________
Brian

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#92380 - 01/15/13 03:41 PM Re: AV7005, Oppo 103 and Epson PJ [Re: vp8000]
jmacari Offline
Gunslinger

Registered: 12/28/05
Posts: 99
Loc: Rhode Island
Brian-

I have DIRECTV; I have a ground rod/wire right next to where the cable from the dish goes into the house; that ground wire is tied into one of the couplers/ground block that connects the dish coax before it goes into the house...that ground rod/wire (that is in ground )has been there for years (used to ground Cable TV before I bought house). That DIRECTV coax then goes into a surge protector (it has two coax connections-also used for over-the-air rooftop antenna coax for local channels), then out to my DIRECTV DVR....

I have never had any amp/preamp related hum because of DIRECTV (or my roof top antenna)...I would assume because everything is grounded properly.

If you still have problems, maybe look into that Jenson CATV ISOLATOR MODEL VRD-1FF unit they mention in the article.

By the way, how do you like the AV7005? Better than what you had before? Sound-wise (CD's, vinyl, etc) is it nice?
_________________________
Anthem MRX-500/ Outlaw 7500, Paradigm Studio 100's Fronts, Paradigm CC-590 Center, Phase Technology Dipole rears , Martin Logan Dynamo sub, Oppo BDP-103, DIRECTV H22-200 DVR HD receiver, Samsung PN60E8000 3D Plasma 60"
2nd System
B&K ST 202 Amp, Outlaw 990, Rotel RCD 1072CD, Yaqin CD 1 Tube Buffer, Apogee Centaur Minors, Phase Technology Model 10 Sub, Rotel RP-855 turntable, Panasonic DMP-BD30, DIRECTV H21-700 DVR HD receiver, Free Agent Home Theatre+, Vizio 40" LED

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#92381 - 01/15/13 04:34 PM Re: AV7005, Oppo 103 and Epson PJ [Re: vp8000]
vp8000 Offline
Gunslinger

Registered: 12/01/06
Posts: 131
Loc: NJ
I have not played with it long enough to say yet. I have not even gone into the settings, just out of the box so far and have not even run it off the 5.1 analog, just digital. No adjustments to the Oppo 103 yet either, just played it out of the box.

I played a few BD and the sound was nice, except for the gound loop hum, hah. It sounded good but so did the Outlaw 990. I will keep you posted as this weekend I will be going into the set up menu's and start to make adjustmens.

Thanks for the help.

Brian
_________________________
Brian

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#92392 - 01/17/13 10:10 AM Re: AV7005, Oppo 103 and Epson PJ [Re: vp8000]
vp8000 Offline
Gunslinger

Registered: 12/01/06
Posts: 131
Loc: NJ
Hey guys, received the Jennson transformer, followed instructions, installed it last night. All the noise has left my system except a very small buzz coming from my right side surround speaker. I am running a 5.2 set up. When no music or a movie is playing you can hear it if you get within 5 feet or so. With sound on it is hard to hear unless you put your ear right up to it. It still buzzes even when the cable is not on the system so it is not from the cable TV.

Hmmm, anyone have any ideas on where to start with this?

Thanks.

Brian
_________________________
Brian

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#92393 - 01/17/13 01:15 PM Re: AV7005, Oppo 103 and Epson PJ [Re: vp8000]
XenonMan Offline
Desperado

Registered: 04/08/08
Posts: 2676
Loc: Columbus,North Carolina
Start with swapping the speakers and see if it follows the speaker. Then start looking at the cables feeding that channel. Make sure they are not lying close to and in parallel with a power cable somewhere. Try swapping cables and speaker wires from one one surround speaker to the other and see if it follows the cable or speaker wires. If the noise is only in one channel and it is not the speaker or the cables that leaves the amp.
_________________________
Music system
Model 990/7500/Magnepan 1.6 QRs/Technics SL1200 MK2/Aperion S-12 Subwoofer/OWA3/Sony NS75H DVD
APC H15 Power Conditioner

TV System
Large Advent Loudspeakers/ Polk center/Monoprice surrounds/Panasonic Viera 42 inch/Onkyo HT-RC260/Sony BDP S590/Directv


Home Theater System
Onkyo PR-SC886/Outlaw 7125 Klipsch RF-82 L/R,RC-62 center, RB-35 SR/SL, BENQ HT1075, Outlaw LFM1-EX/OPPO BDP-83/Directv
Harmony ONE
Blue Jeans and Monoprice interconnects
APC H15 Power Conditioner

Top
#92394 - 01/17/13 01:20 PM Re: AV7005, Oppo 103 and Epson PJ [Re: vp8000]
jmacari Offline
Gunslinger

Registered: 12/28/05
Posts: 99
Loc: Rhode Island
Quote:
All the noise has left my system except a very small buzz coming from my right side surround speaker.


Switch speakers, i.e., try the left surround speaker on the right side (replace the one there now) and see if it still "buzzes" on the right side surround channel, if it does then it isn't the speaker...then check the speaker cable or the interconnect for that channel.....or maybe the polarity for the speaker connection??
_________________________
Anthem MRX-500/ Outlaw 7500, Paradigm Studio 100's Fronts, Paradigm CC-590 Center, Phase Technology Dipole rears , Martin Logan Dynamo sub, Oppo BDP-103, DIRECTV H22-200 DVR HD receiver, Samsung PN60E8000 3D Plasma 60"
2nd System
B&K ST 202 Amp, Outlaw 990, Rotel RCD 1072CD, Yaqin CD 1 Tube Buffer, Apogee Centaur Minors, Phase Technology Model 10 Sub, Rotel RP-855 turntable, Panasonic DMP-BD30, DIRECTV H21-700 DVR HD receiver, Free Agent Home Theatre+, Vizio 40" LED

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